MC Ghee Tyson Airport to Portland International TYS → PDX
1,832 nautical miles (2,109 statute miles) northwest on a straight line, true course 301°, about 307° magnetic at the departure end (variation 6W). At 120 knots that is 15 h 24 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 10:35 am PDT (17:35 UTC). For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 2 flights in the DOT's last twelve reported months, the route's page.
The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words
Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.
Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of
- SIGMET 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 11:55 pm EDT (03:55 UTC). Over the route from 1036 to 1205 nm out.
as issued
WSUS33 KKCI 120155 MKCW WST 120155 CONVECTIVE SIGMET 8W VALID UNTIL 0355Z CO MT WY FROM 40N SHR-60WNW RAP-20ENE CYS-30SW CYS-10NW BOY-40N SHR AREA TS MOV FROM 22040KT. TOPS TO FL350.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 60 nm of the route.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 20 to 70 nm out.
- AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 528 to 727 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 956 to 1553 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1046 to 1344 nm out.
- AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 1095 to 1275 nm out.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1145 to 1524 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1145 to 1703 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 1155 to 1514 nm out.
- AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 1534 to 1753 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 129 nm of the route.
A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from TYS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 UTC · at 120 knots true airspeed
The westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 17 forecast points nearest it (TYS, BNA, EVV, CGI, STL, COU, MKC, OMA, GRI, ONL, BFF, LND, DLN, BOI, LWS, YKM, PDX). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 220° at 7 kt | +1 kt | 15 °C | 119 kt | 15 h 24 min | 10:35 am PDT (17:35 UTC) |
| 6,500 ft | 260° at 6 kt | +4 kt | 11 °C | 116 kt | 15 h 48 min | 10:59 am PDT (17:59 UTC) |
| 8,500 ft | 240° at 7 kt | +4 kt | 6 °C | 116 kt | 15 h 48 min | 10:59 am PDT (17:59 UTC) |
| 10,500 ft | 250° at 10 kt | +7 kt | 4 °C | 113 kt | 16 h 13 min | 11:24 am PDT (18:24 UTC) |
| 12,500 ft | 250° at 13 kt | +10 kt | 1 °C | 110 kt | 16 h 39 min | 11:50 am PDT (18:50 UTC) |
| 14,500 ft | 250° at 14 kt | +11 kt | -3 °C | 109 kt | 16 h 48 min | 11:59 am PDT (18:59 UTC) |
| 16,500 ft | 250° at 15 kt | +12 kt | -8 °C | 108 kt | 16 h 58 min | 12:09 pm PDT (19:09 UTC) |
| 18,000 ft FL180 | 250° at 16 kt | +13 kt | -11 °C | 107 kt | 17 h 07 min | 12:18 pm PDT (19:18 UTC) |
| 24,000 ft FL240 | 250° at 21 kt | +18 kt | -21 °C | 102 kt | 17 h 58 min | 1:09 pm PDT (20:09 UTC) |
| 30,000 ft FL300 | 250° at 27 kt | +23 kt | -34 °C | 97 kt | 18 h 53 min | 2:04 pm PDT (21:04 UTC) |
| 34,000 ft FL340 | 260° at 38 kt | +35 kt | -40 °C | 85 kt | 21 h 33 min | 4:44 pm PDT (23:44 UTC) |
| 39,000 ft FL390 | 270° at 44 kt | +43 kt | -47 °C | 77 kt | 23 h 48 min | 6:59 pm PDT (01:59 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.
The forecast points as issued
| Point | From | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| TYS | used from 0 nm out; 25 nm from the line | 290/19 | 310/22 11° | 330/25 7° | 330/34 3° | 320/37 -7° | 300/37 -18° | 300/37 -34° | 280/29 -39° | 270/29 -48° |
| BNA | used from 50 nm out; 68 nm from the line | 280/13 | 340/34 16° | 330/38 10° | 330/44 5° | 330/39 -8° | 330/38 -19° | 320/49 -34° | 330/53 -40° | 330/35 -47° |
| EVV | used from 149 nm out; 51 nm from the line | 310/13 | 340/26 16° | 330/29 10° | 330/32 4° | 330/30 -9° | 340/38 -20° | 330/60 -35° | 320/57 -41° | 330/39 -48° |
| CGI | used from 249 nm out; 56 nm from the line | 250/10 | 290/12 17° | 290/18 11° | 300/22 5° | 320/25 -8° | 330/30 -18° | 320/53 -33° | 320/66 -42° | 320/56 -50° |
| STL | used from 299 nm out; 29 nm from the line | 210/13 | 260/16 17° | 270/21 10° | 280/24 5° | 310/20 -7° | 320/22 -18° | 320/44 -33° | 320/59 -43° | 310/69 -51° |
| COU | used from 398 nm out; 28 nm from the line | 210/16 | 220/19 15° | 240/33 10° | 250/29 7° | 280/21 -6° | 280/19 -18° | 300/34 -31° | 300/40 -42° | 300/60 -52° |
| MKC | used from 498 nm out; 59 nm from the line | 200/28 | 220/30 16° | 270/20 11° | 280/22 7° | 260/27 -6° | 270/27 -18° | 280/38 -32° | 270/38 -40° | 280/50 -52° |
| OMA | used from 597 nm out; 46 nm from the line | 190/34 | 230/34 19° | 250/25 12° | 250/18 6° | 250/22 -7° | 250/28 -19° | 260/34 -32° | 260/39 -41° | 280/56 -51° |
| GRI | used from 697 nm out; 28 nm from the line | 210/31 19° | 240/21 14° | 240/17 6° | 260/27 -7° | 260/34 -18° | 240/45 -32° | 250/56 -40° | 260/62 -51° | |
| ONL | used from 797 nm out; 65 nm from the line | 200/20 17° | 230/26 14° | 240/21 7° | 250/27 -9° | 260/32 -19° | 240/44 -34° | 240/56 -41° | 250/62 -51° | |
| BFF | used from 896 nm out; 80 nm from the line | 120/24 | 180/31 13° | 210/26 7° | 230/25 -7° | 240/41 -20° | 230/52 -36° | 250/56 -41° | 260/57 -45° | |
| LND | used from 1095 nm out; 114 nm from the line | 180/33 10° | 190/50 3° | 210/59 -9° | 200/50 -21° | 190/41 -34° | 230/55 -39° | 240/65 -47° | ||
| DLN | used from 1295 nm out; 101 nm from the line | 080/10 -3° | 180/8 -3° | 180/23 -14° | 200/58 -22° | 200/80 -36° | 220/85 -41° | 230/81 -45° | ||
| BOI | used from 1494 nm out; 91 nm from the line | 330/14 4° | 230/5 -2° | 220/20 -7° | 210/37 -20° | 200/59 -26° | 200/67 -34° | 210/73 -35° | 220/62 -41° | |
| LWS | used from 1544 nm out; 84 nm from the line | 010/5 | 050/14 -2° | 040/12 -6° | 160/7 -10° | 190/30 -22° | 200/54 -27° | 200/48 -35° | 210/40 -37° | 230/32 -41° |
| YKM | used from 1693 nm out; 76 nm from the line | 030/16 | 020/18 0° | 030/30 -8° | 030/23 -13° | 020/40 -23° | 010/73 -29° | 010/54 -36° | 360/29 -37° | 330/16 -40° |
| PDX | used from 1743 nm out; 65 nm from the line | 330/7 | 360/13 0° | 040/22 -6° | 030/23 -12° | 020/64 -18° | 010/93 -25° | 010/91 -39° | 360/62 -40° | 350/41 -43° |
The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| TYS Knoxville, TN | departure | no report just now | 986 ft | ||||
| BWG Bowling Green, KY | 139 nm out, 4 nm east of the line | no report just now | 547 ft | ||||
| CPS Cahokia/St Louis, IL | 339 nm out, 3 nm northeast of the line, tower | no report just now | 412 ft | ||||
| CHT Chillicothe, MO | 508 nm out, 2 nm northwest of the line | no report just now | 783 ft | ||||
| LNK Lincoln, NE | 667 nm out, 5 nm west of the line, tower | no report just now | 1,218 ft | ||||
| GRI Grand Island, NE | 737 nm out, 22 nm southwest of the line, tower | no report just now | 1,847 ft | ||||
| CDR Chadron, NE | 976 nm out, 11 nm north of the line | no report just now | 3,297 ft | ||||
| HSG Thermopolis, WY | 1215 nm out, 6 nm southwest of the line | no report just now | 4,891 ft | ||||
| WYS West Yellowstone, MT | 1344 nm out, 22 nm north of the line | no report just now | 6,649 ft | ||||
| LGD La Grande, OR | 1643 nm out, 6 nm northeast of the line | no report just now | 2,717 ft | ||||
| PDT Pendleton, OR | 1673 nm out, 24 nm north of the line, tower | no report just now | 1,494 ft | ||||
| PDX Portland, OR | destination | no report just now | 30 ft |
The highest airport on this list sits at 6,649 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PDX when you get there the forecast at the estimated arrival, 10:35 am PDT (17:35 UTC)
PDX has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 7 nm from the route, 438 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
Daylight
Sunset at TYS 7:04 pm EDT (23:04 UTC), at PDX 6:30 pm PDT (01:30 UTC) (civil twilight ends 7:00 pm PDT (02:00 UTC)).
Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.
Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads
Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: MC Ghee Tyson Airport, Portland International.